document.write( "Question 147831: Hi, I am having a very difficult time with this problem. I'm not really sure where to begin. I would appreciate any help.\r
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\n" ); document.write( "\n" ); document.write( "George Lucas pioneered the use of digital movie cameras with the most recent Star Wars film. Assume that Lucas's camera has a swappable 80 GB hard drive (remember: 1 GB = 1024 MB, 1 MB = 1024 KB, 1 KB = 1024 Bytes, and 1 Byte = 8 bits), that it records each pixel in x-bit color, that there are 26 frames recorded per second, and that each frame is recorded in 1600x1200 resolution.\r
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\n" ); document.write( "1. Create a polynomial function that gives the number of minutes of video that can be recorded before swapping in a new hard drive, as a function of x (the number of bits used to encode the color of each pixel) \r
\n" ); document.write( "\n" ); document.write( "2.Evaluate this function for x = 32 (32-bit true color)
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Algebra.Com's Answer #108251 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
I'll take a shot at it.
\n" ); document.write( "26 frames/sec x 60 sec/min = 1560 frames /min
\n" ); document.write( "there are 1600 x 1200 pixels/frame, or
\n" ); document.write( "\"1.92%2A10%5E6\" pixels/frame
\n" ); document.write( "1560 frames/min x 1920000 pixels/frame = \"2.9952%2A10%5E9\" pixels/min
\n" ); document.write( "Each pixel is in \"x\"-bit color, so
\n" ); document.write( "each minute of video requires \"%282.9952%2A10%5E9%29%2Ax\" bits/min
\n" ); document.write( "The hard drive is \"80\"GB
\n" ); document.write( "80 GB x 1024 MB/GB x 1024 KB/MB x 1024 Bytes/KB x 8 bits/Byte
\n" ); document.write( "So the hard drive's capacity is \"687.19477%2A10%5E9\" bits
\n" ); document.write( "The number of minutes one can get out of the 80 GB hard drive is
\n" ); document.write( "\"687.19477%2A10%5E9\" bits / \"%282.9952%2A10%5E9%29%2Ax\" bits/min
\n" ); document.write( "\"T+=+229.432+%2F+x\" min
\n" ); document.write( "If \"x+=+32\",
\n" ); document.write( "\"T+=+7.1697\"min
\n" ); document.write( "That isn't much time. Maybe I goofed, but I think
\n" ); document.write( "my method is OK
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